TAMPA, Fla. (WHTM) — The U.S. Food & Drug Administration (FDA) has issued a nationwide recall for over 1,000 cases of White Castle’s Original Sliders due to a packaging error that could pose an allergen risk.

The recall involves 1,021 cases of the frozen 4-count cartons of Original Sliders, as announced by White Castle’s Frozen Food Division. The concern arises from undeclared milk and soy, which are present in some packages.